单选题：What is NOT true of the effectiveness of"sunscreen", accordi

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题目类型：单选题
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题目内容：

What is NOT true of the effectiveness of"sunscreen", according to the last paragraph? A．It deflects sunlight reaching the Earth to counteract the warming.
B．It blocks the incident energy in the sun's rays.
C．It is a controversial method.
D．It decreases greenhouse gases in the atmosphere.

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